100-60 - Extreme Skateboarding

This bold design really jumps out at you. A crash course in the physics of a favorite urban pastime, this T-shirt demystifies a popular jumping technique called "The Ollie," pioneered in the 70s by Allan "Ollie" Gelfand. Part of Cotton Expressions Extreme Physics T-shirt design series, Extreme Skateboarding features a high-flying skateboarding cartoon on the front and a physics diagram on the back that shows "The Ollie" in action. Skateboarders and science enthusiasts alike will jump for this shirt. Available on White.